The most valuable substances on earth tend to be expensive because of their rarity or because of the difficulty in producing them. However, some materials have an inflated value because of the criminal risk involved in buying and selling these items.
For many centuries, lots of people have believed that gold is one of the most expensive materials in the world. This, however, is absolutely wrong.
6. Painite — $9,000 per gram
This stone is so rare that very few people actually know it exists. It’s a mineral of an orange or reddish-brown color, and it was only discovered 65 years ago. There are just a couple hundred of these stones in the world today.
5. Taaffeite — $20,000 per gram or $4,000 per carat
A precious stone of a violet, pink, red, or white color. It is a million times rarer than diamonds, making it legendary. However, despite its uniqueness, it’s not very popular when it comes to jewelry — and that’s probably the reason why it’s relatively inexpensive
4. Tritium — $30,000 per gram
This gas is used in lighting — for example, in tritium illumination. It costs about $15 million to produce a pound of tritium.
3. Diamond — $55,000 per gram
The most famous precious stone on Earth, and the best friend of any lady.
2. Californium — $25-27 million per gram
The most expensive chemical element ever. It has been synthesized only once since its discovery in 1950.
1. Antimatter — $62.5 trillion per gram
The most expensive substance on Earth. Production of one milligram of positrons costs about $25 million. In theory, we will be able to use antimatter as fuel for spacecrafts in the future. But the drawback today is that to make just one gram of it, all of mankind will have to work for about a year without rest.